Regional Assessment of Human Fecal Contamination in Southern California Coastal Drainages
| Autor: | Alexander Schriewer, Shana Rapoport, Geremew G Amenu, Chris Crompton, Kelly D. Goodwin, Samuel Choi, Tommy Nguyen, Syreeta Steele, Laila L. Othman, Xueyuan Yu, Paul D Smith, Meredith R. Raith, John F. Griffith, Jason B. Gregory, Andrew Sheldon, Joe Guzman, Stephen B. Weisberg, Yiping Cao, Mayela Manasjan |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Pollution Wet weather Environmental remediation Health Toxicology and Mutagenesis media_common.quotation_subject water quality monitoring 030106 microbiology Stormwater lcsh:Medicine fecal source identification 010501 environmental sciences 01 natural sciences California Article human fecal marker Feces 03 medical and health sciences Environmental monitoring Humans Water Pollutants regional monitoring program Weather 0105 earth and related environmental sciences media_common Hydrology Bacteria Ecology Drainage Sanitary lcsh:R Public Health Environmental and Occupational Health Fecal coliform qPCR Genetic marker Environmental science microbial source tracking storm water Water Microbiology Monitoring tool Environmental Monitoring |
| Zdroj: | International Journal of Environmental Research and Public Health; Volume 14; Issue 8; Pages: 874 International Journal of Environmental Research and Public Health, Vol 14, Iss 8, p 874 (2017) International Journal of Environmental Research and Public Health |
| ISSN: | 1660-4601 |
| DOI: | 10.3390/ijerph14080874 |
| Popis: | Host-associated genetic markers that allow for fecal source identification have been used extensively as a diagnostic tool to determine fecal sources within watersheds, but have not been used in routine monitoring to prioritize remediation actions among watersheds. Here, we present a regional assessment of human marker prevalence among drainages that discharge to the U.S. southern California coast. Approximately 50 samples were analyzed for the HF183 human marker from each of 22 southern California coastal drainages under summer dry weather conditions, and another 50 samples were targeted from each of 23 drainages during wet weather. The HF183 marker was ubiquitous, detected in all but two sites in dry weather and at all sites during wet weather. However, there was considerable difference in the extent of human fecal contamination among sites. Similar site ranking was produced regardless of whether the assessment was based on frequency of HF183 detection or site average HF183 concentration. However, site ranking differed greatly between dry and wet weather. Site ranking also differed greatly when based on enterococci, which do not distinguish between pollution sources, vs. HF183, which distinguishes higher risk human fecal sources from other sources, indicating the additional value of the human-associated marker as a routine monitoring tool. |
| Databáze: | OpenAIRE |
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